the second case, the voting rights act, the landmark 1965 law signed by president johnson a key provision that says states that have a history of discriminating in the voting procedures, have to get permission from the federal government before they make any election changes at all. three years ago, the court signalled it thought maybe that was outdated that the south has changed, parts of the south that did better at minority representation than the north that weren't covered by the law and sent a message to congress that they should update it. congress didn't do anything. the question is whether the court is going to weaken or overturn that. and finally on same-sex marriage, andrea, the issue the defense of marriage act. the federal law that says marriage is only between a man and woman, the question is whether that is unconstitutional discrimination. >> it could be really earth shaking changes in the law and how we live in the united states. pete williams at the supreme court, thank you so much. >>> and two days until the first presidential debate. the challenges for both candidates co